diff --git a/pyproject.toml b/pyproject.toml
index 25ed9bad..af4b273b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,7 +17,7 @@ readme = "README.md"
 requires-python=">=3.7,<4"
 dependencies = [
     "networkx>=2,<4",
-    "pydantic~=1.0",
+    "pydantic>=1,<3",
     "loguru",
     "PyYaml>=6",
     "typing_extensions>=4.0.0"